We Checked 200 Websites Listed for St. Petersburg Plumbers. Almost 1 in 5 Didn't Work

Public listings in St. Petersburg, Florida, point to 192 different websites for local plumbers, and our earlier research added 8 more. We tried to open all 200. On October 12, 2026, 38 of them didn't work. The address led nowhere, the site showed an error, or the domain was parked or up for sale. Another 7 opened only after a browser security warning.

That matters most when something breaks. If a plumber's link is dead, you'll likely move on to the next name on the list, and that can be a referral service or a company in another state. Meanwhile, the local plumber you skipped may still be licensed and working.

A dead link doesn't mean a dead business. More than 4 in 10 dead links to a company's own website led to plumbers who still hold an active Florida license. We didn't stop at the links: we checked the businesses behind them against Florida's license records and compared which sources send customers to dead ends.

Below, I show what we checked, where the dead links come from, and what to do when a plumber's website won't open.

Key Findings

• 38 of 200 websites (19%) didn't work on October 12, 2026. 34 of them had also failed when we checked on October 1.
• Foursquare links fail most often. 32% of the websites listed on Foursquare didn't work, compared with 11% of those on a major online maps service and none of those in a search engine's regular results.
• Nearly half of the dead company websites (16 of 34) belong to businesses that still hold an active state license.
• 7 of the 8 parked or for-sale domains belong to companies with an active license.
• 3 links that did open led to a different business: two plumbers in other states and a referral service.

What We Checked

US Directory, which I founded, ranks local service businesses using an open methodology. For this study, we collected every website that public sources link to a plumber in and around St. Petersburg: a popular online maps service, a search engine's business listings and its regular search results, Foursquare, Overture Maps (an open map dataset), OpenStreetMap and All the Places. That gave us 192 web addresses. Our earlier research on licensed local contractors added 8 more, for 200 in all.

Not every address is a plumbing company's own site. Some are directory pages, a few belong to national chains, and some have nothing to do with plumbing but appear on a plumber's listing anyway. We kept all of them, because a customer who clicks the link lands there too. When a number below covers only companies' own websites, I say so.

We checked each address three times: on October 1, 2026, and twice on October 12, about 30 minutes apart, from an internet connection in the United States. We opened by hand the pages that looked broken but might not be.

What "Didn't Work" Means

A website didn't work if a customer who clicked the link got nothing useful. We sorted every address into one of six groups.

We counted the 7 sites behind a security warning as working, because the page does exist. But a careful visitor stops at that warning, and should: it means the browser can't confirm whose site it is.

Among the 162 addresses that belong to a business's own website, rather than a directory, a national chain or another kind of page, 34 didn't work. That's 21%, a bit more than 1 in 5.

Where the Dead Links Come From

The same plumber can appear in several places online, each with its own copy of the website address. When a company changes its site, every copy has to be updated, and many aren't. So we compared the sources.

A website can appear in more than one source, so the counts add up to more than 200. OpenStreetMap and All the Places listed one website each, and both worked.

Foursquare stands out: almost 1 in 3 of its links didn't work, about three times the rate of the major maps service. Regular search results had no dead links at all, likely because search engines tend to drop pages that stop loading.

The number of sources matters too. A website listed in only one source didn't work 25% of the time (28 of 111). When three or more sources listed the same website, only 2 of 35 failed. If you find a plumber's website in just one listing, check it somewhere else before you rely on it.

A Dead Website Doesn't Mean a Closed Business

When a plumber's website won't open, it's easy to assume the company is gone. Often it isn't. We matched the 34 dead company websites against Florida's contractor license records and state business filings.

• 16 belong to businesses with an active state license: 13 local plumbing contractors (one of them with two dead domains), a plumbing franchise and a heating and cooling company.
• 5 more are registered with the state's contractor board as a business, but we found no active license linked to them.
• 7 of the 8 parked or for-sale domains belong to companies that still hold an active license. A visitor sees only a for-sale page and may think the company has closed.
• 6 companies have another website that works, with the same phone number. The listing simply kept the old address. In one case, the dead link was a parked domain, while the company's real site uses almost the same name with "inc" added.
• 13 domains are no longer registered at all. The owners stopped renewing them. 5 of those belong to companies that are still licensed.

Not every dead link hides a working plumber. Three dead addresses were made of the city's name and the word "plumber" or "plumbing" and matched no licensed business. They look like old referral sites that collected calls and passed them on, not a plumber's own website.

So a dead website tells you the listing is out of date. It doesn't tell you whether the plumber is still in business. The way to find out is to check the license, which takes a couple of minutes.

When the Browser Warns You

Seven websites opened only after the browser showed a warning such as "Your connection is not private." Behind each warning was a problem with the site's security certificate, the file that proves a website is who it says it is. We found three kinds:

• Expired certificate (2 sites). The certificate was valid once, but nobody renewed it.
• Self-issued certificate (2 sites). The site issued the certificate to itself, so no outside authority vouches for it.
• Certificate for another domain (3 sites). The certificate was issued to a different website address.

Two of these sites belong to local plumbers who hold active licenses. The company is real, but the warning makes it look like it isn't.

Links That Open the Wrong Business

Three links did open, but not to a St. Petersburg plumber. Two led to plumbing companies in other states, one in Colorado and one in Idaho. The third sent visitors to a referral service that promises to "connect" them with a local plumbing provider.

A working page isn't proof you've found the right company. Before you call, check that the site names a business in your area, and that its phone number matches the listing you started from.

What to Do When a Plumber's Website Doesn't Work

1. Don't rule the plumber out yet. In our check, more than 4 in 10 dead company links belonged to plumbers who still hold an active license.
2. Search for the company's name and city. In our data, regular search results didn't contain a single dead link, so this is often the quickest way to find the current website.
3. Compare more than one listing. A website that appears in only one listing failed 25% of the time. When three or more sources agreed, it failed in 2 of 35 cases. Do the same with phone numbers: trust the one that several listings share.
4. Check the license. Florida's free state search shows whether the company holds an active license under that name. My guide on how to check a plumber's license in Florida walks through it.
5. Look up the brand name. If the name on the listing doesn't match a license, search it in Sunbiz's fictitious name search. A trade name can be registered to a licensed company with a different legal name.
6. Stop at a security warning. Call the company instead of using the site.
7. Make sure you reached the right business. If the site shows a company in another state, or a service that "connects" you with plumbers, ask whoever answers for their license number and check it before any work starts.

If You Run a Plumbing Company

Many of the dead links we found weren't the plumber's fault alone. A listing kept an old address, or the company stopped renewing its old domain after moving to a new site. A few minutes can fix most of it.

• Click your own links. Open your listing on the major maps and search services, on Foursquare and in any other directory where your business appears, and click the website link from each one. In our check, Foursquare links failed almost three times as often as links on the major maps service.
• Keep your old domain. If you move to a new website, keep renewing the old domain and forward it to the new site. 13 of the dead addresses we found were domains their owners had stopped renewing, and 5 of those belonged to plumbers who are still licensed.
• Watch your security certificate. An expired certificate puts a warning in front of every visitor. Many hosts can renew it automatically, and free certificates are widely available.
• Use one phone number everywhere. When listings disagree, customers can't tell which one is real.

How We Did This, and What We Can't Tell You

The addresses. On October 1, 2026, we collected every website that public sources listed for plumbers in St. Petersburg and up to about 2 miles beyond the city limits: 192 addresses. We added 8 that our earlier research had found for licensed local contractors, for 200 in all.

The checks.

• October 1. Each address was opened in a full Chrome browser from a U.S. internet connection. A language model sorted each page by type: a business's own site, a directory, a parked domain and so on, and a person checked the results.
• October 12, twice, about 30 minutes apart. For each address, we looked up the domain in the DNS; if it didn't resolve, we checked it again with a second public DNS service. We then requested the page over a secure connection and, if that failed, over a plain one. We recorded the status code and where the page ended up, and compared the page with known error, parking and for-sale pages. Pages behind bot checks, pages that build themselves with scripts, and anything the automatic check got wrong were opened again in a regular Chrome browser. That review corrected one automatic result.

We only loaded pages, the way a visitor would. We didn't fill in forms or log in anywhere.

The license match. On October 12, we matched the company names, trade names and phone numbers behind the 38 dead addresses against Florida's contractor license records, state business filings and the state's records of license applications, and checked whether each domain was still registered. A match by license number is strong. A match by trade name or phone number is less certain, and we treat it that way.

What this study can't tell you.

• It covers one city and one trade. We don't extend these results to the whole country.
• Not every address belongs to a plumbing company. We kept directories and other pages because customers land on them too.
• Websites change every day. These numbers are a snapshot from October 1 and 12, 2026. Two of our three checks were on the same day, so we can't say how long each site had been down. 34 of the 38 dead sites had already failed on October 1.
• An active license tells you a company may legally work. It doesn't prove the company is taking jobs today, and it doesn't guarantee the work will be done well.
• We didn't measure speed, mobile layout or what the sites say.
• We don't name the businesses behind dead links. Many of them are still working, and an out-of-date listing isn't a mark against them.

FAQ

Does a dead website mean the plumber is out of business?

Not necessarily. Of the 34 dead company websites, 16 belonged to businesses that still held an active Florida license. Often the listing simply points to an old address. Checking the license tells you more than the website does.

Why do listings show websites that don't work?

Each listing keeps its own copy of a company's details. When a business moves to a new site or stops renewing its domain, the old address can stay in some listings long after. In our check, 13 of the dead domains were no longer registered at all.

Which listings are most reliable?

In our data, regular search results had no dead links, and a major online maps service had about 11%. Foursquare had the most, almost 1 in 3. A website listed in several places was far less likely to be dead than one listed only once.

What does "Your connection is not private" mean on a plumber's website?

The site's security certificate is expired, made by the site itself, or issued for another domain, so the browser can't confirm whose site it is. The company may be real, but don't enter personal or payment details there. Call instead.

How can I tell if I reached the right plumber?

Check that the website names a company in your area, that the phone number matches other listings, and that the company holds an active state license under that name or a registered trade name.

Sources

All sources checked on October 12, 2026.

• US Directory data: 200 websites listed for plumbers in and around St. Petersburg, Florida, collected October 1, 2026, and checked on October 1 and twice on October 12, 2026.
• Florida Department of Business and Professional Regulation: Verify a Licensee, contractor license records and license application records.
• Florida Department of State, Division of Corporations (Sunbiz): business filings and the fictitious name search.
• Domain registration records (RDAP).
• US Directory: How to Check a Plumber's License in Florida.